Bicycle handle-bar



(No Model.)

S. PALMITER. BICYCLE HANDLE BAR.

No. 599,301. Patented Feb. 15,1898.

g a q llnrrnn ATIENT tries.

SAMUEL PALMITER, OF JAMESTOVVN, NElV YORK, ASSIGNOR TO THE SYRA- CUSEHANDLE BAR COMPANY, OF SYRACUSE, NEW' YORK.

BICYCLE HANDLE-BAR.

SPECIFICATION forming part of Letters Patent No. 599,301, dated February15, 1898. Application filed April 22, 1895. Serial No. 54=6,804. (Nomodel.)

To all whom it may concern.-

Be it known that I, SAMUEL PALMITER, a citizen of the UnitedStates,residing in J amestown, in the county of Chautauqua and State ofNew York, have invented certain new and useful Improvements in BicycleI'landleBars; and I hereby declare that the following is a full andexact description of the invention, which will enable others skilled inthe art to which it appertains to make and use the same.

The object of my invention is to provide bicycles, velocipedes, andtricycles with an adjustable handle-bar and one that may be adjusted bythe rider while in transit; andthe improvement consists in theconstruction and arrangement of parts, as will be fully understood bythis specification and the accompanying drawings, in which- Figure 1shows a sectional elevation of bicycle stem and handle-bar having myinvention with connecting-threads left open. Fig. 2 shows stem withhandle-bar in cross-section. Fig. 3 shows segment of connection drawntogether.

In the drawings, 1 is the handle-bar,having a ferrule or'ring 2 securelyfastened by brazing or otherwise, as desired, at the center of thelength of the bar and has a screw-thread 3 of suitable size cut in theouter surface, the only difference from a common thread being that thepoint or edge of the thread is cut or left off, so as not to touch thebottom of the thread out in the head at when drawn together, as shown inFig. 3.

4 is the head of the steering-stem 5, which has a correspondingscrew-thread cut on its inner side, having the point or edge of thethread out or left off, so that when drawn together, as shown in Fig. 3,the thread does not touch the bottom. The stem 5 of the head a isslotted, as shown at 8, Fig. 2, and has a contracting-screw passing atright angles with said slot, one part of the stem serving as a nut, asshown in Fig. 2, or the screw-bolt might pass clear through the stem andbe provided with a nut for drawing the head together 5 but I prefer themechanism shown, as it is not only lighter and cheaper, but saves dangerfrom nut being lost. The screw-bolt 6 may have a head, large andserrated on its outer edge to better turn the same; but I sometimes makethe head of the bolt much smallerand put in a pin for turning thescrewbolt, as shown in Fig. 1, which device gives a better leverage forturning up the screwbolt. After securing the ferrule to the handle-bar,as described, and having cut a thread on the same before fastening onthe handgrips (not shown) I turn the bar-thread into the head the fulllength of thread, and these threads should be a close fit when made, eX-cept the points or edge of the same, as described, although an ordinaryV- thread will answer a good purpose. Then I bring the handle-bar intothe desired position and secure it in place by turning up the screw-boltso as to draw the slotted head enough together to clamp the threads ofthe head into the threads of the handlebar. They will thus impinge oneach other, and by leaving off the points or edges on each thread, asshown, this can readily be done and made secure whenever desired. If itis desired to change the position of the bar, turn backthe screw-bolt bythe lever or pin in the head, bring the bar to the desired position, andsecure with the screw-bolt as before, all of which can be readily doneby the rider when desired While on his wheel and in motion.

The screw-threads aid in fitting the handlebar into place. The end ofthe handle-bar is inserted through the clamp and the coactingscrew-threads caused to engage. Rotation of the handle-bar will then,through the medium of the screw-threads, draw the handle-bar through theclamp into position. WVere these screw-threads not provided, the weightof the handle-bar would be thrown on the hands of the operator infitting the parts together.

Having fully described my invention, what I claim as new, and desire tosecure byLet-ters Patent, is-

1. In bicycle handle-bars, the combination, with the handle-bar having acentral enlargement provided with annular external screwthreads, withtheir sharp edges removed, a slotted stem having a head with annularinternal screw-threads, with their sharp edges removed, engaging theannular threads of the handle-bar enlargement, and a screw mounted I00in the stem and adapted to clamp the head around thehandle-bar,substantially as shown and for the purpose set forth.

2. In bicycle handle-bars, the combination with the handle-bar having acentral enlargement provided with annular external screwthreads, aslotted stem having a head with 3. In bicycle handle-bars, thecombination with a handle-bar provided with exterior screw-threads atits center,a split clamp screwthreaded interiorly, and embracing thehandle-bar, and means for securing said split clamp upon the handle-bar.

In testimony that I claim the foregoing I 20 sign my name in thepresence of two Witnesses.

' SAMUEL PALMITER.

Witnesses:

S. A. BALDWIN, N. E. THOMAS.

